Experimental and simulation research on micro-Doppler effect in laser coherent detection

Bi-da Su; Su-hui Yang; Jing-feng Wang; Chang-ming Zhao; Hai-yang Zhang; Kang Zhao

doi:10.1117/12.836407

31 August 2009 Experimental and simulation research on micro-Doppler effect in laser coherent detection

Bi-da Su, Su-hui Yang, Jing-feng Wang, Chang-ming Zhao, Hai-yang Zhang, Kang Zhao

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73824N (2009) https://doi.org/10.1117/12.836407
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

Micro-Doppler effect and its mathematical model were discussed. The Micro-Doppler effect of vibration and rotation of moving point target were analyzed. The micro-Doppler frequency shift induced by vibration is simulated and proceeded by means of the time-frequency analysis. A micro-Doppler Solid-state coherent ladar system for detecting micro-motion of target was demonstrated to detect the micro-Doppler frequency shifts induced by vibration, complex micro motion and rotation, and the micro-Doppler frequency shift induced by rotations at 0.2 r/s or vibrations at 0.5Hz were detected. The information of micro-motion was extracted by the arithmetic of time-frequency analysis. These results are helpful for target's feature extraction and identification.

Citation Download Citation

Bi-da Su, Su-hui Yang, Jing-feng Wang, Chang-ming Zhao, Hai-yang Zhang, and Kang Zhao "Experimental and simulation research on micro-Doppler effect in laser coherent detection", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73824N (31 August 2009); https://doi.org/10.1117/12.836407

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